If 30028 = 28 Ones + 28 Thousand + -_____ Tens, then the number in the blank space is

Options

A. 280
B. 28
C. 128
D. 200

Answer

To solve the equation \( 30028 = 28 \text{ Ones} + 28 \text{ Thousand} + -\_\_\_\_\_ \text{ Tens} \), we will follow these steps:

### Step 1: Understand the components of the number
The number \( 30028 \) can be broken down into its place values:
- Thousands: \( 30000 \)
- Hundreds: \( 0 \)
- Tens: \( 20 \)
- Ones: \( 8 \)

### Step 2: Express the given equation
From the problem statement, we can express \( 30028 \) as:
\[ 30028 = 28 \times 1 + 28 \times 1000 + x \times 10 \]
where \( x \) represents the number of tens we need to find.

### Step 3: Substitute the known values
Now, substituting the values we have:
\[ 30028 = 28 + 28000 + x \times 10 \]

### Step 4: Combine the known values
Combine \( 28 \) and \( 28000 \):
\[ 30028 = 28028 + x \times 10 \]

### Step 5: Isolate the term with \( x \)
To isolate \( x \), we subtract \( 28028 \) from both sides:
\[ 30028 - 28028 = x \times 10 \]
\[ 2000 = x \times 10 \]

### Step 6: Solve for \( x \)
Now, divide both sides by \( 10 \):
\[ x = \frac{2000}{10} = 200 \]

### Conclusion
The number in the blank space is \( 200 \).